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/*
* Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights
* reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the NetLogic
* license below:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _ASM_NLM_MIPS_EXTS_H
#define _ASM_NLM_MIPS_EXTS_H
/*
* XLR and XLP interrupt request and interrupt mask registers
*/
#define read_c0_eirr() __read_64bit_c0_register($9, 6)
#define read_c0_eimr() __read_64bit_c0_register($9, 7)
#define write_c0_eirr(val) __write_64bit_c0_register($9, 6, val)
/*
* Writing EIMR in 32 bit is a special case, the lower 8 bit of the
* EIMR is shadowed in the status register, so we cannot save and
* restore status register for split read.
*/
#define write_c0_eimr(val) \
do { \
if (sizeof(unsigned long) == 4) { \
unsigned long __flags; \
\
local_irq_save(__flags); \
__asm__ __volatile__( \
".set\tmips64\n\t" \
"dsll\t%L0, %L0, 32\n\t" \
"dsrl\t%L0, %L0, 32\n\t" \
"dsll\t%M0, %M0, 32\n\t" \
"or\t%L0, %L0, %M0\n\t" \
"dmtc0\t%L0, $9, 7\n\t" \
".set\tmips0" \
: : "r" (val)); \
__flags = (__flags & 0xffff00ff) | (((val) & 0xff) << 8);\
local_irq_restore(__flags); \
} else \
__write_64bit_c0_register($9, 7, (val)); \
} while (0)
static inline int hard_smp_processor_id(void)
{
return __read_32bit_c0_register($15, 1) & 0x3ff;
}
#endif /*_ASM_NLM_MIPS_EXTS_H */
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